Do infant/toddler car seats (not boosters) in the EU market have a "suitable for aircraft use" testing/labeling process, akin to that for [AU/NZS](https://travel.stackexchange.com/questions/60425/how-can-one-use-a-child-car-seat-that-requires-a-top-tether-in-an-airplane) or [FMVSS/CMVSS](http://www.faa.gov/passengers/fly_children/) seats?  It is alright if such testing/labeling is a manufacturer's option -- I just want to know if such a thing exists in the EU, as lap children aren't nearly as crashworthy as even a 9-G (old standard) airline seat, while a certified and properly installed CRS should perform adequately even to the newer 16-G standard for airline seating.